256227712

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3651

約数の個数: 64

約数和(自身を含む): 562660560

約数和(自身を除く): 306432848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 344, 416, 559, 688, 832, 1118, 1376, 1664, 2236, 2752, 3581, 4472, 5504, 7162, 8944, 14324, 17888, 28648, 35776, 46553, 57296, 71552, 93106, 114592, 153983, 186212, 229184, 307966, 372424, 458368, 615932, 744848, 1231864, 1489696, 2001779, 2463728, 2979392, 4003558, 4927456, 5958784, 8007116, 9854912, 16014232, 19709824, 32028464, 64056928, 128113856, 256227712]

約数ペア:

[(1, 256227712), (2, 128113856), (4, 64056928), (8, 32028464), (13, 19709824), (16, 16014232), (26, 9854912), (32, 8007116), (43, 5958784), (52, 4927456), (64, 4003558), (86, 2979392), (104, 2463728), (128, 2001779), (172, 1489696), (208, 1231864), (344, 744848), (416, 615932), (559, 458368), (688, 372424), (832, 307966), (1118, 229184), (1376, 186212), (1664, 153983), (2236, 114592), (2752, 93106), (3581, 71552), (4472, 57296), (5504, 46553), (7162, 35776), (8944, 28648), (14324, 17888)]